The Canadian-born singer has won eight Grammys in her career and was one of the most iconic stars of her generation.

Scene: The folk icon was reportedly found by paramedics around 2.30pm on Tuesday after an emergency call from her house in Bel-Air, where she has lived since 1974

Last year, Mitchell, who was inducted into the Rock and Roll Hall of Fame in 1997, admitted she endured years of turmoil after being diagnosed with the rare condition Morgellons disease, which made her believe parasites were living under her skin.

The condition is not acknowledged by Western medicine, which considers it psychological.

Iconic: The Canadian-born singer won eight Grammys in her career and was one of the most iconic stars of her generation

In the memoir, Joni Mitchell: In Her Own Words, she revealed: 'At the height of my illness I could not even wear clothing.

'All the time it felt like I was being eaten alive by parasites living under my skin. I couldn't leave my house for several years.